Spooled said:I think I know the cricket sound you are talking about. I get it at 3000rpm. I think it has something to do with the rear motor mount getting broken down and causing something to vibrate. Do you have just a front motor mount, and do you have a short shifter? I think that my "cricket" might be the exhaust heat shield vibrating against the exhaust because it was moved closer after installing my TWM shifter.
changed my front motor mount out last week and the old one was basically ripped in half. Also when JDMSAM installed my front motor mount, he said he really thinks my back motor mount is trashed as well. I dont have a heat shield anymore after installing my short shifter I took it off to cut on it, but have not put it back on. I still think your onto something though, it could be something else creating the rattling due to the weak rear motor mount.
In addition, I have always in the back of my head thought I wired my devices to the wrong wire for power and think that it may be causing the idle issue, but I'm not an expert so I have to test each and every thing until I find what the cause is.
Please keep posting!! I like your advice and I feel if we all work together we can resolve these issues for each other...